Wyoming Statutes Title 41. Water § 41-8-121. Assessments generally

(a) The board of directors shall, on or before the third Monday in July of each year, certify to the board of county commissioners of the county within the watershed improvement district in which assessed land is located the amount of the annual installments of assessments against the land, together with a fair proportionate amount of the estimated operating and maintenance charges apportioned to the land for the next succeeding year. Thereupon the county commissioners shall certify to and deliver the assessment roll to the county assessor of the county and the county assessor shall extend the amounts so certified on the tax roll as a flat special assessment against the land benefited. The assessments shall be subject to the same interest and penalties in case of delinquency as in the case of general taxes, and shall be collected at the same time and in the same manner as in the case of general taxes; provided, that the assessments shall become due and payable only at the times and in the amounts as may be determined by the board of directors.

(b) The board of directors in making the annual assessments and levies as herein provided, shall take into account the maturing indebtedness for the ensuing year as provided in its contracts, the maturing of bonds and interests on all bonds, and deficiencies and defaults of prior years, and shall make ample provisions for the payment thereof; provided however, that no one (1) yearly call for assessment by the board of directors shall be in an amount to exceed ten percent (10%) of the actual amount necessary to defray the cost of the construction of the improvement or project.